Plaster of Paris (POP) is among the most popular materials used in a variety of commercial as well as residential roofing applications. POP is basically gypsum sans its water content (created by heating gypsum to a temperature when water evaporates) available in powdered form.
Plaster of Paris, also known as POP, is a powdered form of low-moisture gypsum or calcium sulfate. When the light powder is combined with water, it rehydrates and hardens back into gypsum in the shape of the mold..
Gypsum is the main component in the POP plaster. The name Plaster of Paris came because of the large gypsum mines on the outskirts of Paris from where the ancient builders got their first plaster for building work. This was in Montmartre and the calcined gypsum came to be called Plaster of Paris (POP).
With good quality metal frames, gypsum ceilings by Saint Gobain are quite durable. Since gypsum boards are made with precision in factories, the consistency in design is maintained which makes it the ideal material for best false ceiling designs.